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Finding the Fourth Proportional to 60,364.10, 90,547.85 and 15,990.86

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Solution

The fourth proportional to 60,364.10, 90,547.85 and 15,990.86 is: 23,986.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,364.10 : 90,547.85 = 15,990.86 : x
  2. Step 2: Convert to fraction form
    60,364.10/90,547.85 = 15,990.86/x
  3. Step 3: Cross multiply
    60,364.10x = 90,547.85 × 15,990.86
  4. Step 4: Simplify right side
    60,364.10x = 1,447,937,459.96
  5. Step 5: Solve for x
    x = 1,447,937,459.96/60,364.10
  6. Step 6: Final answer
    x = 23,986.73

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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.