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Finding the Fourth Proportional to 29,547.84, 40,779.36 and 16,803.84

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Solution

The fourth proportional to 29,547.84, 40,779.36 and 16,803.84 is: 23,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,547.84 : 40,779.36 = 16,803.84 : x
  2. Step 2: Convert to fraction form
    29,547.84/40,779.36 = 16,803.84/x
  3. Step 3: Cross multiply
    29,547.84x = 40,779.36 × 16,803.84
  4. Step 4: Simplify right side
    29,547.84x = 685,249,840.74
  5. Step 5: Solve for x
    x = 685,249,840.74/29,547.84
  6. Step 6: Final answer
    x = 23,191.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.