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Finding the Fourth Proportional to 38,862.40, 53,623.20 and 22,094.40

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Solution

The fourth proportional to 38,862.40, 53,623.20 and 22,094.40 is: 30,486.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,862.40 : 53,623.20 = 22,094.40 : x
  2. Step 2: Convert to fraction form
    38,862.40/53,623.20 = 22,094.40/x
  3. Step 3: Cross multiply
    38,862.40x = 53,623.20 × 22,094.40
  4. Step 4: Simplify right side
    38,862.40x = 1,184,772,430.08
  5. Step 5: Solve for x
    x = 1,184,772,430.08/38,862.40
  6. Step 6: Final answer
    x = 30,486.34

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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.