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Finding the Fourth Proportional to 58,653.94, 87,972 and 19,210.18

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Solution

The fourth proportional to 58,653.94, 87,972 and 19,210.18 is: 28,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,653.94 : 87,972 = 19,210.18 : x
  2. Step 2: Convert to fraction form
    58,653.94/87,972 = 19,210.18/x
  3. Step 3: Cross multiply
    58,653.94x = 87,972 × 19,210.18
  4. Step 4: Simplify right side
    58,653.94x = 1,689,957,954.96
  5. Step 5: Solve for x
    x = 1,689,957,954.96/58,653.94
  6. Step 6: Final answer
    x = 28,812.35

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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.