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Finding the Fourth Proportional to 60,497.40, 90,746.10 and 18,944.40

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Solution

The fourth proportional to 60,497.40, 90,746.10 and 18,944.40 is: 28,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,497.40 : 90,746.10 = 18,944.40 : x
  2. Step 2: Convert to fraction form
    60,497.40/90,746.10 = 18,944.40/x
  3. Step 3: Cross multiply
    60,497.40x = 90,746.10 × 18,944.40
  4. Step 4: Simplify right side
    60,497.40x = 1,719,130,416.84
  5. Step 5: Solve for x
    x = 1,719,130,416.84/60,497.40
  6. Step 6: Final answer
    x = 28,416.60

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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.