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Finding the Fourth Proportional to 8,457.32, 12,701.10 and 7,368.68

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Solution

The fourth proportional to 8,457.32, 12,701.10 and 7,368.68 is: 11,066.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.32 : 12,701.10 = 7,368.68 : x
  2. Step 2: Convert to fraction form
    8,457.32/12,701.10 = 7,368.68/x
  3. Step 3: Cross multiply
    8,457.32x = 12,701.10 × 7,368.68
  4. Step 4: Simplify right side
    8,457.32x = 93,590,341.55
  5. Step 5: Solve for x
    x = 93,590,341.55/8,457.32
  6. Step 6: Final answer
    x = 11,066.19

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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.