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Finding the Fourth Proportional to 60,547.10, 90,832.80 and 18,429.80

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Solution

The fourth proportional to 60,547.10, 90,832.80 and 18,429.80 is: 27,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,547.10 : 90,832.80 = 18,429.80 : x
  2. Step 2: Convert to fraction form
    60,547.10/90,832.80 = 18,429.80/x
  3. Step 3: Cross multiply
    60,547.10x = 90,832.80 × 18,429.80
  4. Step 4: Simplify right side
    60,547.10x = 1,674,030,337.44
  5. Step 5: Solve for x
    x = 1,674,030,337.44/60,547.10
  6. Step 6: Final answer
    x = 27,648.40

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1.5x scale

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.