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Finding the Fourth Proportional to 63,078.04, 87,030.30 and 36,219.16

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Solution

The fourth proportional to 63,078.04, 87,030.30 and 36,219.16 is: 49,972.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,078.04 : 87,030.30 = 36,219.16 : x
  2. Step 2: Convert to fraction form
    63,078.04/87,030.30 = 36,219.16/x
  3. Step 3: Cross multiply
    63,078.04x = 87,030.30 × 36,219.16
  4. Step 4: Simplify right side
    63,078.04x = 3,152,164,360.55
  5. Step 5: Solve for x
    x = 3,152,164,360.55/63,078.04
  6. Step 6: Final answer
    x = 49,972.45

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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.