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Finding the Fourth Proportional to 60,074.40, 90,112.80 and 15,698.40

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Solution

The fourth proportional to 60,074.40, 90,112.80 and 15,698.40 is: 23,547.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,074.40 : 90,112.80 = 15,698.40 : x
  2. Step 2: Convert to fraction form
    60,074.40/90,112.80 = 15,698.40/x
  3. Step 3: Cross multiply
    60,074.40x = 90,112.80 × 15,698.40
  4. Step 4: Simplify right side
    60,074.40x = 1,414,626,779.52
  5. Step 5: Solve for x
    x = 1,414,626,779.52/60,074.40
  6. Step 6: Final answer
    x = 23,547.91

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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.