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Finding the Fourth Proportional to 10,915,547.80, 16,373,321.70 and 10,702,971.40

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Solution

The fourth proportional to 10,915,547.80, 16,373,321.70 and 10,702,971.40 is: 16,054,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915,547.80 : 16,373,321.70 = 10,702,971.40 : x
  2. Step 2: Convert to fraction form
    10,915,547.80/16,373,321.70 = 10,702,971.40/x
  3. Step 3: Cross multiply
    10,915,547.80x = 16,373,321.70 × 10,702,971.40
  4. Step 4: Simplify right side
    10,915,547.80x = 175,243,193,878,099.38
  5. Step 5: Solve for x
    x = 175,243,193,878,099.38/10,915,547.80
  6. Step 6: Final answer
    x = 16,054,457.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.